US 12,410,866 B2
Seal cartridge with electrically conductive non-woven grounding
D. Anthony Manley, Cleveland, GA (US); Darin Battles, Dahlonega, GA (US); and Christopher Beller, Cumming, GA (US)
Assigned to Freudenberg-NOK General Partnership, Plymouth, MI (US)
Filed by Freudenberg-NOK General Partnership, Plymouth, MI (US)
Filed on Jun. 7, 2023, as Appl. No. 18/330,434.
Application 18/330,434 is a continuation in part of application No. 17/514,986, filed on Oct. 29, 2021, granted, now 11,754,188.
Prior Publication US 2023/0313888 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F16J 15/32 (2016.01); F16J 15/3232 (2016.01); F16J 15/3256 (2016.01); F16J 15/3284 (2016.01)
CPC F16J 15/3256 (2013.01) [F16J 15/3232 (2013.01); F16J 15/3284 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A cassette seal arrangement sealing between a shaft and a housing, comprising:
a sleeve mounted on the shaft and including a cylindrical portion and a radially extending portion extending radially outward from the cylindrical portion;
a retainer cartridge including a main retainer mounted directly to and makes electrically conductive contact with the housing and the main retainer directly supporting a seal member that includes a main seal lip that contacts the cylindrical portion of the sleeve and an exclusionary retainer formed separate from the main retainer and connected to the main retainer and supporting an exclusionary seal that engages the shaft, wherein the radially extending portion of the sleeve is disposed longitudinally between the seal member and the exclusionary seal;
an electrically conductive non-woven element mounted to the radially extending portion of the sleeve and disposed longitudinally between the radially extending portion of the sleeve and the exclusionary seal and having an outer perimeter engaging a cylindrical portion of the exclusionary retainer of the retainer cartridge and an inner perimeter that directly engages the shaft, wherein the electrically conductive non-woven element includes a plurality of slots extending radially inward from an outer perimeter.